Correct -- deep-flatten can only be enabled at image creation time. If you do still have snapshots on that image and you wish to delete the parent, you will need to delete the snapshots. On Mon, Aug 7, 2017 at 4:52 PM, Shawn Edwards <lesser.evil@xxxxxxxxx> wrote: > Nailed it. Did not have deep-flatten feature turned on for that image. > > Deep-flatten cannot be added to an rbd after creation, correct? What are my > options here? > > On Mon, Aug 7, 2017 at 3:32 PM Jason Dillaman <jdillama@xxxxxxxxxx> wrote: >> >> Does the image "tyr-p0/a56eae5f-fd35-4299-bcdc-65839a00f14c" have >> snapshots? If the deep-flatten feature isn't enabled, the flatten >> operation is not able to dissociate child images from parents when >> those child images have one or more snapshots. >> >> On Fri, Aug 4, 2017 at 2:30 PM, Shawn Edwards <lesser.evil@xxxxxxxxx> >> wrote: >> > I have a child rbd that doesn't acknowledge its parent. this is with >> > Kraken >> > (11.2.0) >> > >> > The misbehaving child was 'flatten'ed from its parent, but now I can't >> > remove the snapshot because it thinks it has a child still. >> > >> > root@tyr-ceph-mon0:~# rbd snap ls >> > tyr-p0/51774a43-8d67-4d6d-9711-d0b1e4e6b5e9_delete >> > SNAPID NAME SIZE >> > 2530 c20a31c5-fd88-4104-8579-a6b3cd723f2b 1000 GB >> > root@tyr-ceph-mon0:~# rbd children >> > >> > tyr-p0/51774a43-8d67-4d6d-9711-d0b1e4e6b5e9_delete@c20a31c5-fd88-4104-8579-a6b3cd723f2b >> > tyr-p0/a56eae5f-fd35-4299-bcdc-65839a00f14c >> > root@tyr-ceph-mon0:~# rbd flatten >> > tyr-p0/a56eae5f-fd35-4299-bcdc-65839a00f14c >> > Image flatten: 0% complete...failed. >> > rbd: flatten error: (22) Invalid argument >> > 2017-08-04 08:33:09.719796 7f5bfb7d53c0 -1 librbd::Operations: image has >> > no >> > parent >> > root@tyr-ceph-mon0:~# rbd snap unprotect >> > >> > tyr-p0/51774a43-8d67-4d6d-9711-d0b1e4e6b5e9_delete@c20a31c5-fd88-4104-8579-a6b3cd723f2b >> > 2017-08-04 08:34:20.649532 7f91f5ffb700 -1 >> > librbd::SnapshotUnprotectRequest: >> > cannot unprotect: at least 1 child(ren) [1d0bce6194cfc3] in pool >> > 'tyr-p0' >> > 2017-08-04 08:34:20.649545 7f91f5ffb700 -1 >> > librbd::SnapshotUnprotectRequest: >> > encountered error: (16) Device or resource busy >> > 2017-08-04 08:34:20.649550 7f91f5ffb700 -1 >> > librbd::SnapshotUnprotectRequest: >> > 0x55d69346da40 should_complete_error: ret_val=-16 >> > 2017-08-04 08:34:20.651800 7f91f5ffb700 -1 >> > librbd::SnapshotUnprotectRequest: >> > 0x55d69346da40 should_complete_error: ret_val=-16 >> > rbd: unprotecting snap failed: (16) Device or resource busy >> > root@tyr-ceph-mon0:~# rbd info >> > tyr-p0/a56eae5f-fd35-4299-bcdc-65839a00f14c >> > rbd image 'a56eae5f-fd35-4299-bcdc-65839a00f14c': >> > size 1000 GB in 256000 objects >> > order 22 (4096 kB objects) >> > block_name_prefix: rbd_data.1d0bce6194cfc3 >> > format: 2 >> > features: layering >> > flags: >> > >> > >> > _______________________________________________ >> > ceph-users mailing list >> > ceph-users@xxxxxxxxxxxxxx >> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> > >> >> >> >> -- >> Jason -- Jason _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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